This makes it easier to fit more in your frame horizontally while optimizing your video for modern screens. Aspect ratio is the difference in the width and height of your image. There are many aspect ratios in photo and video, but the one you choose ultimately depends on where you intend to display your images.
There are far more aspect ratios than just or , but those are two of the most common in photo and video. A third common aspect ratio in modern photography is , which matches the 35mm size of a full-frame sensor. As you change your aspect ratio, you tell your camera what parts of your frame you want to actually record.
Where will it be displayed, and in what format do you intend and audience to view it? If you wanted that image to fill the monitor, your image will either become distorted or significantly cropped.
The same thing applies if you have a image that you want to put onto a display—something like an 8X10 printed photo, which would have a aspect ratio for example. The difference between these two aspect ratios is that records more information horizontally, while records more vertically. The aspect ratio was the starting aspect ratio in the beginning days of television in the s. If you think back to that old TV your parents or grandparents had, it would have been more square in shape.
This was because the TVs were optimized to display the images that the first silent films were created in. However, the aspect ratio was slightly adjusted when sound was added to films.
Rather than a true ratio 1. They are not capable of displaying HD high-definition video. The aspect ratio dates back to , when the Society of Motion Picture Engineers adopted it as the standard format for film.
Television broadcasting stayed with the standard, until the recent move to HDTV and widescreens. It is 78 percent wider than it is tall, and fully one-third wider than a screen. Some models can also display SD standard definition video signals, but this will require some compromises, as you will read below. Nearly all experts agree that in order to display optimal video images, it is critical to match the aspect ratio of the monitor to the aspect ratio of the camera or other incoming video source.
Below is a example of a image on a monitor:. However, the majority of cameras in the industrial, commercial, security, and law enforcement industries still utilize CCD or CMOS imagers.
Therefore, to display clear, undistorted video images, it is important to utilize monitors with the same aspect ratio to match the cameras. Failure to do so will result in distorted images, as shown below. There are 3 primary ways to display a video signal on a monitor, each with its own drawback:.
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